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authorJoe Thornber <ejt@redhat.com>2013-05-10 17:37:16 +0400
committerAlasdair G Kergon <agk@redhat.com>2013-05-10 17:37:16 +0400
commitf8350daf7af05e3b8cf98e9550de3f623af03fe7 (patch)
tree109342db8572f7fa15784ffb8bdf2b3b0dca258c /include/linux/device-mapper.h
parent042bcef889f4319d366c67fb694f1f2498fcb68e (diff)
downloadlinux-f8350daf7af05e3b8cf98e9550de3f623af03fe7.tar.xz
dm cache: tune migration throttling
Tune the dm cache migration throttling. i) Issue a tick every second, just in case there's no i/o going through. ii) Drop the migration threshold right down to something suitable for background work. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Alasdair G Kergon <agk@redhat.com>
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